WO2007125384A2 - Composition absorbante de matière pour la libération contrôlée d'huiles essentielles - Google Patents

Composition absorbante de matière pour la libération contrôlée d'huiles essentielles Download PDF

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Publication number
WO2007125384A2
WO2007125384A2 PCT/IB2006/004221 IB2006004221W WO2007125384A2 WO 2007125384 A2 WO2007125384 A2 WO 2007125384A2 IB 2006004221 W IB2006004221 W IB 2006004221W WO 2007125384 A2 WO2007125384 A2 WO 2007125384A2
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WO
WIPO (PCT)
Prior art keywords
carrier
active ingredient
garlic
composition
oil
Prior art date
Application number
PCT/IB2006/004221
Other languages
English (en)
Other versions
WO2007125384A3 (fr
Inventor
Genaro Casas Jassan
Jose Represas De Aimeida
Original Assignee
Genaro Casas Jassan
Jose Represas De Aimeida
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Genaro Casas Jassan, Jose Represas De Aimeida filed Critical Genaro Casas Jassan
Priority to EP20060850460 priority Critical patent/EP2015634A2/fr
Priority to AU2006342957A priority patent/AU2006342957A1/en
Priority to MX2008006199A priority patent/MX2008006199A/es
Priority to CA 2627689 priority patent/CA2627689A1/fr
Publication of WO2007125384A2 publication Critical patent/WO2007125384A2/fr
Publication of WO2007125384A3 publication Critical patent/WO2007125384A3/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/12—Powders or granules
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/18—Vapour or smoke emitting compositions with delayed or sustained release
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
    • A01N31/08—Oxygen or sulfur directly attached to an aromatic ring system
    • A01N31/16—Oxygen or sulfur directly attached to an aromatic ring system with two or more oxygen or sulfur atoms directly attached to the same aromatic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/40—Liliopsida [monocotyledons]
    • A01N65/44—Poaceae or Gramineae [Grass family], e.g. bamboo, lemon grass or citronella grass
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
    • A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/013—Deodorant compositions containing animal or plant extracts, or vegetable material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/014—Deodorant compositions containing sorbent material, e.g. activated carbon
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
    • A61L9/042—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating with the help of a macromolecular compound as a carrier or diluent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
    • A61L9/12—Apparatus, e.g. holders, therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/005—Antimicrobial preparations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D9/00—Compositions of detergents based essentially on soap
    • C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
    • C11D9/22—Organic compounds, e.g. vitamins
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D9/00—Compositions of detergents based essentially on soap
    • C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
    • C11D9/22—Organic compounds, e.g. vitamins
    • C11D9/38—Products in which the composition is not well defined
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D9/00—Compositions of detergents based essentially on soap
    • C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
    • C11D9/44—Perfumes; Colouring materials; Brightening agents ; Bleaching agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/413—Nanosized, i.e. having sizes below 100 nm
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/56—Compounds, absorbed onto or entrapped into a solid carrier, e.g. encapsulated perfumes, inclusion compounds, sustained release forms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2998—Coated including synthetic resin or polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/4935—Impregnated naturally solid product [e.g., leather, stone, etc.]

Definitions

  • the present invention relates to an absorbent composition of matter used to gradually release an active ingredient, such as a natural pesticide made from essential oils, for inhibiting the growth of bacteria, fungi and eradicating insect pests.
  • an active ingredient such as a natural pesticide made from essential oils
  • insecticides including those available for home use, commonly comprise active ingredients or "poisons" which are not only toxic to the target insect pests, but, if used in relatively confined environments and delivered as aerosol sprays, can be present in sufficient concentration to also be toxic to humans and household pets.
  • Various undesirable side effects may include immediate or delayed neurotoxic reactions, and/or suffocation. Even the noxious odor of such materials can cause headaches or upset stomachs in some individuals. These adverse side effects are exacerbated when such compositions come in contact with persons of increased sensitivity, or persons of small body mass such as children or babies.
  • insecticidal compositions particularly those intended for residential use in aerosol form, which are effective in killing the targeted insect pests completely and quickly, but non-toxic to humans and pets.
  • the Environmental Protection Agency (EPA) regulates the use of potentially toxic ingredients in pesticidal compositions under the Federal Insecticide, Fungicide and Rodenticide Act.
  • Certain materials considered to be either active or inert materials by the EPA have been deregulated or otherwise identified as acceptable "safe" substances offering minimum risk in normal use. Other materials are currently undergoing investigation and may be deregulated in due course. Deregulated substances are generally considered non-poisonous by the consumer.
  • the term "non-poisonous" as used herein is intended to convey a composition that, while highly effective in killing targeted insect pests, is safe to use around humans, particularly small children, and pets.
  • non-poisonous insecticidal compositions available heretofore incorporating deregulated materials as the active ingredient have had limited efficacy.
  • Attempts to use deregulated essential oils as the active ingredient in such insecticides while having limited success, have generally been found to be either cost prohibitive, inadequately lethal to control a range of targeted insect pest species, or too slow- acting to enable the user to confirm that the insect has been killed and to dispose of the dead insect so as to avoid polluting the environment.
  • Microencapsulation techniques address the problem of controlled release by enclosing the transient component within hollow shells of differing size and wall thickness, which dissolve or otherwise rupture at different intervals to provide a more or less steady supply.
  • the temporary shells of microencapsulation can be replaced by more permanent semipermeable shells which allow escape through the shell wall without shell destruction, or the entire microcapsule replaced by a homogeneous semipermeable vehicle containing the active ingredient as a pure impregnant, solute or precipitate.
  • the host vehicle serves not to enclose the active ingredient within a wall, but as a carrier from which it can only slowly escape by solution, diffusion, evaporation or some other rate-limited process.
  • the utility of a particular host material as such a carrier depends on such properties as liquid content, pore size, compatibility with various environments, surface energy and wettability, susceptibility to post-impregnation modifications in properties, and ease of manufacture in suitable physical forms.
  • the commercial exploitation of slow release carrier vehicles requires the availability of inert, microporous materials which are readily impregnable with a wide variety of substances, have controllable porosity, and possess acceptable physical properties.
  • Garlic Allium sativum Linn.
  • Garlic Allium sativum Linn.
  • aqueous extracts of garlic have been reported to inhibit the growth of a variety of yeast-like fungi in the genera Candida, Cryptococcus, Rhudotoruto, Torulopsis and Trichosporon. It has also been previously reported that garlic extract and chips inhibit the growth of fungi such as Candida albicans, Aspergillus fumigatus and Aspergillus parasiticus.
  • garlic or its extract have been used as pesticides to control plant diseases such as mildew. It has also been used as an insecticide to control plant insects such as army worms, aphids and Colorado beetles. Most recently, garlic extract and water has been used to repel mosquitoes.
  • the concept of the new product derived from the present invention is enlarged in its range of applications.
  • uses in agriculture, home and industry are possible by combining its qualities to gradually release an aromatic substance to repel plagues of insects like cockroaches in kitchens or mosquitoes as well as other agricultural crop damaging insects.
  • Good results are obtained by combining garlic or garlic extract, known for its qualities as a repellent for garden or agriculture damaging insects, and essential oils, such as eugenol, with this absorbent carrier.
  • the absorbent carrier has the capacity to gradually release these forms of repellent aromas providing for a long lasting product; malodor, if present is also totally or partially absorbed.
  • attractant substances can be used, being of particularly useful application for household pets, for example, the use of an attractant aroma or fragrance in the production of cat litter.
  • the composition of matter in the present invention provides for a controlled time release of the different active ingredients, such as a natural pesticide, applied to the preferred embodiment (corn cob particles).
  • Essential Oil is defined as a subtle, volatile liquid obtained from plants and seeds or artificially obtained substitutes, for example, allyl isothiocyanate (AITC) as a substitute for mustard seed oil.
  • AITC allyl isothiocyanate
  • Garlic or garlic extract is defined as any liquid removed from cloves of garlic and may therefore include garlic oil and water. Garlic extract has the same meaning as garlic juice.
  • an absorbent material comprises a carrier formed by particles obtained from one of a woody ring and a chaff ring of a corncob; and an active ingredient mixed with said carrier, wherein said active ingredient comprises an essential oil.
  • Figure 1 shows the relationship between weed survival and application rate of a slow release formulation containing 85% garlic and 15% mustard oils in a microplot experiment with Impatiens.
  • Figure 2 shows the relationship between nematode numbers and application rate of a slow-release formulation containing 85% garlic oil and 15% mustard oil in a microplot experiment with Impatiens.
  • the preferred embodiment of the product object of the present invention consists of two basic elements: first, a carrier characterized by its great capacity for odor and malodor absorption, and gradual release of other active substances toward the air or surrounding atmosphere. Second, one or more chemical, natural or synthetic elements that added to the carrier complete diverse functions, according to the desired results (perfume surrounding air, react with undesirable substances present in the air, liberate therapeutic, repellent or attractant chemical agents).
  • the carrier which is the preferred embodiment of the product in the present invention is a material obtained from the threshed ear of corn (Zea Maiz) whose special physical and chemical qualities allow the previously described functions, of absorption and gradual release.
  • an industrial process well known in the state of the art is required, which consists of separation, classification and sizing of each one of the components that constitute corncobs.
  • the threshed ear of the corn also known as "olote” in Mexico, “spiga de maiz” in Castilian, corncob in English, “sabugo” in Portuguese and “balle de ma ⁇ s” in French, if cut transversely is constituted by three concentric ring. Starting with the inner ring, they are known in English as pith, woody ring and chaff. The material of the present invention uses the woody ring and chaff portions.
  • woody ring as well as the chaff portion, has similar characteristics, both can be used as carriers for active ingredients as described in the body of the present invention.
  • the main differences reside in the difference of absorption capacity and in the particle hardness. Other differences exist and are described below.
  • woody ring should be 99% free of other cob particles, it should have no more than 1% dust or fines (the product should be air washed).
  • fines are particles that can pass through U.S. standard screen size 400 (37 microns). It must be subjected to heat treatment that guarantees microbiology content and moisture levels under 10%.
  • the particle size should be uniform in size and ranges should not exceed a maximum of 3987 microns and a minimum of 42 microns.
  • the woody ring of corncobs is characterized by the following: a hardness of 4.5 on the Mohs scale, a fast absorbency of oil (for example soybean oil) of 1 to 1 on weight basis and the typical molecular structure of a natural fiber.
  • particle sizing for the present invention should be between the following ranges: 1) retained or larger than a mesh of 3987 microns, 2) particles between 3987 and 1191 microns, 3) particles between 1191 and 841 microns, 4) particles between 841 and 42 microns.
  • the main characteristic of the particle size is the surface area that each one represents; for example, particles between 1410 and 841 microns have an average surface area of 5.88 square meters per gram. Particles between 841 and 420 microns have an average surface area of 7.20 square meters per gram. This characteristic is decisive in the qualities of absorption of different substances on the part of the carrier that embodies the product object of the present invention.
  • woody ring particles are characterized by having a structure that seen on an electron microscope resembles that of a sea sponge.
  • this type structure has capacity to admit and retain substances of small and large molecular size. This allows superior qualities of absorption in comparison to other products such as Cyclodextrin that as is known in the state of the art, only admits malodor molecules of small size.
  • Example #1 A 100 gram portion of mature Camembert cheese, a 20 gram portion of bacon and a 10 cm dish containing 25 grams of woody ring particles sized between 1410 and 841 microns where all placed in a sealed glass container.
  • Another glass container with the same components except for the woody ring particles was also prepared as a control sample. Both glass containers were inspected at intervals of 24hs, 3 days, 5 days and 8 days; the container with the absorbent material practically didn't manifest the characteristic scent of the decomposition of products contained, while the control glass container presented potent and unpleasant scents.
  • Example #2 10 grams of tobacco where incinerated in two sealed glass containers. One of the containers had a 10cm diameter dish containing 10 grams of woody ring, sized between 1410 and 841 microns. The other container remained as a control sample. After 24 hours both containers where opened. The container with the absorbent woody ring particles did not present the characteristic scent of tobacco, while the control sample presented potent scents characteristic of tobacco smoke. In both tests the evaluation of the scents or aromas were carried out by the authors of the present invention, as well as by a professional perfumist whose educated sense of the smell surrendered an objective opinion of these tests.
  • Chaff portion of the corncob The characteristics of the Chaff portion of the corncob are similar to the woody ring portion in its ability to function as a carrier for fragrances and other active ingredients. The most distinguishing differences are: 1) more absorption; between 1.5 and 3 times it's weight in oil, 2) Particles size between 841 and 73 microns and 3) less particle flowability. Woody ring particles are rounder in shape than chaff and therefore flow better.
  • Both woody ring and chaff are characterized by having an almost neutral pH, in the order of 6. This quality makes it an ideal inert carrier with all type of substances, since it does not react with active ingredients. Some other types of carriers have to be disactivated first to neutralize their pH content.
  • corncobs are not favorable for the development of microorganisms, therefore not providing fertile ground for bacteria or fungi that in turn cause malodor or disagreeable scents. It is known in the state of the art that a whole corncob can be stored without cover for periods of one year.
  • the suitable product is the one obtained from the woody ring. If on the contrary the functional object is to achieve absorption of an active substance to be slowly released in the air and the absorption of malodors or scents is not important, the elected product would be the chaff portion.
  • these substances are available in a liquid, powder or granular state and depending on the active agents chemical constitution, soluble in oil or water.
  • the absorbent carrier depending on the type of active ingredients used, can absorb a larger or smaller quantity of said agent. This depends primarily on the size of the active ingredient molecule size, the absorbent carriers gradual release will also depend on this molecular size. The absorption of malodor or scents is simultaneously achieved. The intensity, duration and brightness of the aroma, with fragrances, will depend on factors of the active ingredient or agent's composition. For example, larger molecular size is equal to longer duration, while the presence of smaller molecular sizes such as those in an ester evaporate quickly.
  • EXAMPLE #1 for fragrances, perfumes and therapeutic aromas, generally using a base of polyvinyl glycol, light mineral oil or microencapsulated powder or granular base, the concentration on a weight basis of the woody ring to active ingredient, is from 0.01% to 18%. A larger amount saturates the absorbent carrier and product flowability is greatly reduced. The concentration on a weight basis of the chaff portion to active ingredient is from 0.01% to 36%.
  • EXAMPLE #2 for repellents and attractants, generally in oleaginous or microencapsulated powder or granular bases such as Givaudans Flavor BurstTM products, the recommended concentration ranges, for the woody ring as well as the chaff portion, are similar to the previous example. Concentrations depend on the active ingredient or agent used and the functionality desired in the end product.
  • EXAMPLE #3 for oxidizers and chemical reducers or neutralizers, generally in a liquid or solid microencapsulated powder or granular base, the concentration ranges on a per weight basis, both for woody ring and chaff are from 0.05% to 5% of active ingredient or substance. Being that the determinant factor is not the capacity of carrier absorption, but rather the capacity to stay stable and not be affected by the active substance.
  • EXAMPLE #4 for antibacterial and fungicidal use, when these are in a water, oleaginous or microencapsulated powder or granular base, the proportion of active ingredient or agent on a per weight basis to absorbent carrier is the same as that of example #1.
  • the concentrations on a per weight basis can range from 0.01% to 25% with the woody ring fraction and 0.01% to 50% with chaff.
  • the concentration to choose will be determined by the experience of whom ever prepares formulations according to the known state of the art.
  • the formulation of the composition of matter or product object of the invention can be made using liquid based active ingredients added to the absorbent carrier.
  • liquid based active ingredients added to the absorbent carrier.
  • solid materials as active ingredients, usually in the form of pure or microencapsulated products. This variation allows more flexibility in the absorbent carriers applications. It can also take advantage of factors like stronger concentrations of active ingredients.
  • Many pure substances come in solid form; the use of a liquid as diluent or dispersant of the pure substance implies a reduction in its concentration or strength. For example table salt NaCl is more intense to the palate than its version diluted in water, commonly called brine.
  • active ingredients in solid state can adhere and/or adsorb to the surface of the absorbent corn cob carrier, allowing it to use a larger proportion of it's inner absorbent capacity for malodor or other applications.
  • active ingredients in a liquid state since these occupy more of the corncob carriers odor absorbent capacity thus partially reducing it's ability to absorb undesirable malodor.
  • an absorbent carrier constituted by a fraction derived from corncobs, an active ingredient or agent that is in liquid or solid state
  • a combination resulting from the mix of a mineral or organic carrier with a liquid base active ingredient and finally, a substance that assures that, the active ingredients absorb or adsorb to the corncob carrier (avoiding the separation among carriers or agents and assuring correct homogeneity, functionality and dispersion).
  • the liquid active ingredient is a concentrated floral fragrance perfume using polyvinyl glycol as a carrier.
  • EXAMPLE #5 Corncob carrier mixed with an active ingredient in a liquid base. The density of the active ingredient determined a saturation point of 18% on a per weight basis to the corncob granules. 180 grams of active ingredient where mixed with a kilogram of corncob carrier. This proportion maintains carrier flowability, absorption of odors and slow release of active ingredient (fragrance). Results: the perfuming active ingredient, was released gradually and perceived smell lasted 30 days. The corncob carrier continued absorbing scents in the air after 30 days.
  • EXAMPLE #6 two active ingredients; one utilizing an encapsulated active ingredient, commercially available, like Givaudan fragrance or flavor, in powder form and the other, using a laboratory sample, made by mixing Silicon Dioxide (SiO2), in proportion of 1 to 4 on the base of liquid active ingredient to Silicon Dioxide weight.
  • the absorbent corncob carrier was impregnated with an adherent coating, in this case consisting of a .5% per weight basis, foamed solution of anionic surfactant with water. Once the corncob carrier was mixed with the foam, an adherent coating of foam formed on the corncob granules. Immediately after which the active ingredients in solid form where added. The active ingredient particles adhered to the coating and allowed for a homogeneous mixture without separation.
  • EXAMPLE #7 Using surfactants as adherent coating: anionic, cationic and amphoteric can be used.
  • the formulation is: foam obtained from adding water to 0.02% to 5% of surfactant by weight.
  • the quantity of foam on a per weight basis to corncob woody ring fraction (carrier) is between 0.5% and 3.5%. Larger proportions do not allow for an appropriate mixture when adding active ingredients in solid form.
  • EXAMPLE #8 Using mineral oils as an adherent coating; they should be highly refined preferably odor and colorless; viscosity on the Saybolt scale (SUS/210 F) should be between 40 and 300. The concentration of mineral oil by weight to woody ring is between 0.5% and 18%.
  • EXAMPLE #9 for natural pesticides, generally using a base of essential oil or microencapsulated powder or granular base, the concentration on a weight basis of the woody ring to active ingredient, is from 0.01% to 18%. A larger amount saturates the absorbent carrier and product flowability is greatly reduced. The concentration on a weight basis of the chaff portion to active ingredient is from 0.01% to 36%.
  • Tests were conducted to determine the effectiveness of the absorbent composition used as a carrier for the active ingredient comprising an essential oil of the extract of garlic and/or allyl isothiocyanate (AITC) for the controlled release of the garlic extract against golden nematode in alpha potato.
  • the treatment consisted of the application of 7 kg/hectare, 10 kg/hectare and 15 kg/hectare of the carrier and essential oil. The results indicate that the golden nematodes were greatly reduced as compared to a control, while productivity was greatly increased.
  • the effectiveness of the absorbent composition was used as a carrier for the essential oil of garlic and/or AITC for the controlled release of the garlic against Meloidogyne Incognita nematode. M.
  • Incognita soil was obtained fro a farm in Mexico. The farmer had previously reported nematode infestation. The farmer mostly exports Tomato and other agricultural product to other countries.
  • the carrier and garlic in the form of powder garlic was suspended in water at a concentration of 10.0 ml/1. The results indicated that the amount of larva of Meloidogyne Incongmita in 200 cc of soil was virtually eliminated. Further tests conducted in laboratories and greenhouses indicate similar results.
  • EXAMPLE #10 for nematicide/soil fumigants, generally in oleaginous or microencapsulated powder or granular bases, such as Givaudans ENROBEDTM and FLAVORBURSTTM products, the recommended concentration ranges, for the woody ring as well as the chaff portion, are similar to the previous example. Concentrations depend on the active ingredient or agent used and the functionality desired in the end product.
  • the pesticidal activities of proprietary slow-release formulations of selected volatile compounds of plant origin were studied in greenhouse and microplot experiments.
  • the selected volatile compounds were: natural thyme (20% oil) flavor; natural rosemary (20% oil) flavor; natural eugenol (20% oil) flavor; natural garlic (10% eugenol (20%); natural garlic (8.75%) eugenol (26.25%); artificial cinnamic aldehyde (20% oil) flavor; natural and artificial garlic (10%) cinnamic aldehyde (5%) flavor; natural and artificial garlic (10%) cinnamic aldehyde (10%) flavor; natural garlic (15% oil) flavor; natural and artificial garlic (12.75%) mustard (2.25%) flavor; natural and artificial garlic (85%) mustard seed (15% oil) flavor; and natural and artificial garlic (17%) mustard seed (3% oil).
  • the compounds were encapsulated in micro-granules to form slow-release formulations. All these materials are used commonly in the food and perfume industries and are available from Givaudan of Switzerland.
  • the formulations were applied as a suspension (400 mgs granules/100 ml water) onto the soil surface of pots (10-cm diam, PVC) containing each 1 kg soil.
  • the soil was a silt loam (pH 6.2; CEC ⁇ 10 meq/100 g soil; org.
  • Soil and root populations of the root-knot nematode were significantly reduced by applications of thyme, rosemary and eugenol alone, and in combinations with garlic. Also, some combinations of garlic with mustard, notably the 85-15 ratio of garlic to mustard, were very active against the nematode while formulations with cinnamic aldehyde alone or with garlic were generally ineffective. Numbers of spiral nematodes in the roots were lowest in plants from pots treated with garlic-mustard combinations or with thyme. Rosemary treatments increased root populations of the lesion nematode while the other treatments had no effect on this nematode. Treatments without mustard resulted in the tallest plants with the heaviest roots and shoots. The inclusion of mustard in the formulations resulted in either no change in shoot height or in smaller increases in shoot and root weights when compared to the other formulations. Experiment #2
  • the fungicidal action of the slow-release formulations used in Experiment #1 was assessed in an experiment with a sand-peat mix infested with a virulent isolate of Rhizoctonia solani obtained from diseased cotton seedlings.
  • Application of slow release granules was by mixing directly with the sand-peat mix contained in pots (1 kg mix).
  • the pots were covered with polyethylene bags and placed in a cool (20C) room for 4 days when the bags were removed and 30 annual morningglory (Ipomoea spp.) seed were spread on the sand-peat surface and then covered with a 1 cm thick layer of moist sand.
  • the pots were placed back in the cool room for two days and were then transferred to a greenhouse bench.
  • Statistical design was as described for the experiment with nematodes.
  • the number of morningglory plants was determined at 10, 12, 14, and 17 days after application of the formulations. Following the last count the plants were separated from the sand-peat medium, and were washed and weighed. The condition of the root systems was assessed visually using a scale of 1-5 where 1 represented perfectly healthy roots and 5 roots with restricted root system with severe necrosis and lesions caused by the fungus. Efficacy was based on calculation of the area under the curve defining the number of morningglory plants per pot (Y axis) and days after treatment for the period between the 10 and 12 days after application (X axis).
  • R. solani eliminated over 70% of the possible morningglory plants.
  • the disease was most successfully dealt with by formulations containing garlic oil.
  • Least active compositions were those containing cinnamic aldehyde, rosemary, and thyme in increasing order of efficacy.
  • Granules with eugenol were the most effective among the single component formulations.
  • the most effective compound formulations were those containing garlic + eugenol 8.75-26.26% and garlic + mustard 12.75-2.25%; these formulations were the only ones with increased fungicidal activity over that obtained with garlic alone.
  • the herbicidal and nematicidal activities of a slow release formulation containing 15% mustard oil and 85% garlic oil was tested in a microplot (1 ft 2 ) experiment with soil infested with root-knot nematode (M incognita) and a variety of annual weeds.
  • the formulation was applied by drenching (I" acre water) at rates 0 - 200 lbs a.i./A, followed by coverage of the plots with clear polyethylene (1 mil). After 10 days the plots were planted with 4-week old Impatiens seedlings. Weed control was directly proportional to the amount of active ingredient applied, as shown in Figure 1.
  • the ideal ratio of garlic to essential oil is 85% garlic to 15% essential oil, such as eugenol, mustard seed oil, or the like.
  • active ingredients can be polymers, perfumes, oxidizers, attractants, repellents, reducers, antibacterials, etc, in solid form. These ingredients are mixed and dispersed with the granular corncob carrier sized between 42 and 3987 microns. The quantity of solid active ingredient dispersed should be between 0.01% and 40% per weight basis.

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Abstract

L'invention concerne une composition absorbante de matière qui fait office de support pour un ingrédient actif. L'ingrédient actif est progressivement libéré par le support de manière contrôlée, qui est compatible avec l'environnement et les tendances courantes en ce qui concerne l'utilisation de produits organiques et biodégradables. Le support est caractérisé en ce qu'il se présente sous forme de particules obtenues par broyage, séparation, lavage par l'air et classification des différentes fractions obtenues à partir de rafles de maïs. L'ingrédient actif est, par exemple, une huile essentielle, de type huile ou extrait d'ail pouvant être combiné à d'autres huiles essentielles pour produire un effet synergique qui permet d'obtenir un insecticide/fongicide amélioré naturel et sans additifs chimiques. En variante, un substitut d'origine artificielle, par exemple, de l'isothiocyanate d'allyle (AITC), peut être utilisé en tant que substitut pour de l'huile de graine de moutarde.
PCT/IB2006/004221 2005-10-14 2006-10-12 Composition absorbante de matière pour la libération contrôlée d'huiles essentielles WO2007125384A2 (fr)

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EP20060850460 EP2015634A2 (fr) 2005-10-14 2006-10-12 Composition absorbante de matiere pour la liberation controlee d'huiles essentielles
AU2006342957A AU2006342957A1 (en) 2005-10-14 2006-10-12 Absorbent composition of matter for controlled release of essential oils
MX2008006199A MX2008006199A (es) 2005-10-14 2006-10-12 Composicion de material absorbente para la liberacion controlada de aceites esenciales.
CA 2627689 CA2627689A1 (fr) 2005-10-14 2006-10-12 Composition absorbante de matiere pour la liberation controlee d'huiles essentielles

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US11/250,306 US7247377B2 (en) 1999-09-17 2005-10-14 Absorbent composition of matter for controlled release of essential oils
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US10722604B2 (en) 2015-05-18 2020-07-28 Zobele Holding S.P.A. Device for releasing volatile substances

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US11864560B2 (en) 2022-01-21 2024-01-09 Richard Thomas Johnston Fragrant plant treatment compositions
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CN115500363B (zh) * 2022-09-20 2023-06-27 广东省科学院微生物研究所(广东省微生物分析检测中心) 一种具有增效作用的防霉复合组合物及其制备方法和应用

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US10688214B2 (en) 2015-05-18 2020-06-23 Zobele Holding Spa Volatile substance evaporation element
US10722604B2 (en) 2015-05-18 2020-07-28 Zobele Holding S.P.A. Device for releasing volatile substances

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EP2015634A2 (fr) 2009-01-21
AU2006342957A1 (en) 2007-11-08
WO2007125384A3 (fr) 2008-12-18
CA2627689A1 (fr) 2007-11-08
US7247377B2 (en) 2007-07-24
US20060078733A1 (en) 2006-04-13

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